Filter



l 2 Sheets-Sheet 1.

JEWELL. FILTER.

(No Model.)

Patented Deo. 31, 1889.

N PETERS, Pham-Ulhogmpher. Washington. DVC.

(No Model.) 2 sheets-sheen 2.

vO. H.. 8v I. H. JEWELL.

FILTER. No. 418.186. Patented Dec. 31,1889.

N. PETERS. Phomumagmpmr. washingmn Dfc.

UNITED STATES PATENT OFFICE.

OMAR H. JEWELL AND IRA H. JEWELL, OF CHICAGO, ILLINOIS.

FILTER.

SPECIFICATION forming part of Letters Patent No. 418,186, dated December 31, 1889.

Application tiled November l, 1889. Serial No. 328,960. (No model.)

To all whom t may concern.-

Be it known that we, OMAR II. JEWELL and IRA H. JEWELL, citizens of the United States of America, both residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Filters, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to apparatus for filtering water, so arranged that with reversing' the feed the impurities accumulated therein can be washed out; and it is our object to provide such an apparatus that is more simple in its construction and more perfect in its operation, and in which the filtering-sand can be stirred by mechanical means for thoroughly washing and separating therefrom all impurities collected therein while reversing the circulating current; and with these objects in view our invention consists of the novel devices and combinations of devices hereinafter described and specifically claimed.

In the accompanying drawings, Figure 1 represents a transverse vertical section through the center of the apparatus with the valve in position for filtering water; and Fig. 2 a sectional plan of the lower part of the filtering-tank. Fig. 3 is a longitudinal vertical section,Fig. 4L an elevation, and Fig. 5 a transverse vertical section, 4of the valve adjusted for reversing the feed for cleansing the apparatus. Fig'. 6 is a cross-section of one of the strainer-pipe arms with strainers attached, and Fig. 7 a sectional elevation of one of the stirrer-bars as coupled toone of the strainerpipe arms.

Corresponding letters of reference in the several figures of the drawings designate like parts.

A denotes acylindrical tank hermetically closed on top, where upon its center it has secured thevalve-casing B. This casing B is bored out cylindrical, with one end closed by ay plate b, cast solid with the casing, and with a cover C, fitted against its opposite or otherwise open end and secured by screws c.

In the rigid cover l) is the water-inlet opening cl, to which the water-supply pipe will be connected, and through the bottom of the valve-casing, in about the center thereof and vertically between the bore of the casing and the base thereof, is the transverse porte, communicating through a port f with the valvechamber, and having coupled to one end a stop-valve D, connecting through a pipe with the purified water reservoir, and having coupled to its opposite end a valve E, coinmunicating through a pipewith the sewer. To one side of this port c is provided a vertical port g, extending from the valve-chamber through the base of the casing, and tothe opposite side of port e is another vertical port h, leading from the valve-chamber into a stuffing-box that provides a water-tight bearing for an upright hollow shaft F, that will be hereinafter described.

Inside the valve-casing B is fitted a shaped valve G, the base of which provides a cavity of a width to cover the openings of either ports f and g or of ports f and h. The top of. this valve G is grooved for a packingstrip ,pressedagainst the bore of the casing B by a spring j. This valve G has a central oblong slot for the flattened portion of valvestein Z, fitted therein, which valve-stem Z at one end has a pin entering a socket in plate b of the valve-casing, while its shank is projected through a stuffing-box of cover C, and has mounted upon its exterior end a segmentgear m, engaging a pinion n, mounted upon thei end of a shafto, that is pivoted in eyelugs of the casing B and cover C, withahandwheel p mounted upon its opposite end in a manner that withturning.hand-wheel ,p in one direction or another the valve G will be oscillated to cover either ports fand g or ports f and h.

The hollow shaft F is secured with its bottom end into a star-coupling H, pivotally supported on a nipple-plate q, and into this starcoupling are secured four (more or less) pipes I, radially extending to near the cylindrical wall of tank A, where their ends are closed, thc upper end of hollow shaft F being pivoted in a stuffing-box of ports h of the valvecasing B, thus providing communication between this port 7i and the pipes I. Each of such pipes I has screwed in top and both sides a series of strainers J, each consisting of a cup-shaped casting having a screw-nozzle at one end for securing it into'a tap-hole of pipes I, and having fixed over its expanded and fianged opening a fine-wirescreen fy.

IOO

Above star-coupling H is mounted upon shaft F a flanged sleeve M, having secured fiat radial arms N, one vertically above each pipe I, and a series of rods O are vertically secured by passing the upper ends thereof through holes in arms N, and by connecting their lower ends by means of collar-straps 5, riveted thereto and sleeved upon the pipes I. Below t-he top plate of tankAis also mounted upon hollow shaft F a spur-wheel P, meshing with a pinion Q, mounted upon a vertical shaft R, pivoted in a stuffing-box s in the base-fiange of the valve-casing and in an eyebracket t of casing B, and having mounted on its upper end a crank-wheel S, by turning` which shaft F, with radial pipes I, arms N,

` and vertical rods O, will be rotated.

' The operation-of the apparatus will-be as follows-to wit: The valve G being adjusted by hand-wheel p to be on the position as shown by Fig. l, and the valve E being shut, the water to be purified, fed in through opening fd, will flow through port g of the valvecasing-into tank A, filled with sand and fine gravel, to a line above the upper ends of rods O,fand as the tank thus is entirely filled with water the same will filter through the sand and gravel, will then pass through the strainersJ into pipes I, and will thence rise in hollow shaft F, to escape through port h, and through ports f and e and valve D, to be discharged into the pure-water reservoir. The filtering will thus continue incessantly until the impurities from the water thus filtered have accumulated in the tank to a degree necessitating a discharging of such impurities and of` washing out the tank and cleaning the sand and gravel, for which purpose the valve D fris shut and the valve E is opened, and the valve G is adjusted by turning hand-wheel p to the position shown in Fig. 5, when the water fed into the valve-chamberthrough opening d `will enter portfh, will be forced through upright ,shaft F down into radial pipes I, and th encethrou gh strainers J, to rise through the sand, escaping through port g into ports f e, and thence through valve E into the sewer, carrying with vit all impurities; and for the purpose of thoroughly washing the sand and gravel during this operation of impurities gathered therein thatotherwise might be detained by the gravity and solid packing of the sand and gravel, the crank-wheel S is to be turned for rotating the shaft F, and with it the radial pipes I and rods O, thereby loosening and stirring the sand and gravel for the upward flow of water to 'carry with it. all light p matter deposited between the grains of the before being filtered.

fore -the valve G is readj usted again forfiltering, and after such readjustment the water lremaining from the wash-out in the hollow shaft F and in the radial pipes I must be dis- .charged into the sewer through valve E before this valve E is closed and the valve D is opened for discharging the water into the pure-water reservoir again, which can be determined by drawing samples through cock o.

It will be readily seen that a filter thus arranged with a single valve for reversing the flow of the water through the filter by degrees by means'of a hand-wheel and gearing',`so as to prevent a heavy shock of the water in the pipes, and with the device for stirring the filtering material during a Wash-out, will be easily managed by any unskilled person and will be under easy control, while at the saine time it will purify the water thoroughly without frequent renewal of the filtering material. This stirring device can be rotated with great ease during the time the current of water is reversed, whereby the sand and gravel will be held in suspense by the up current to become a' liquid mass. j

l.- The combination, with a filtering-tank provided with upright pipe F and branch pipes'I, having strainer-cups, of valve-casing B, having water-supply opening CZ, port h, communicating with pipe F, port g, communicating with the filtering-tank, and -port f, communicating with water-discharge port e, and of oscillating valve G,'having cavity that 4will'provide communication between either ports f g or f h, substantially as and for the purpose set forth.

2. The combination, with `a filtering-tank 'provided with upright pipe F and branch pipes I, having strainer-cups, of valve-.casing B, having water-supply opening (l, po rt h, comf municating with pipe F, port g, communicating with the filtering-tank, and port f, 00mmunicating'throughport c with valves D yand E, one for the purified water and the other for the wash-out water, and of oscillating valve G, havin g cavity 0c, that will provide communication between either ports f g or f 71, substantially as and for the purpose set forth.

3.' The combination, with a 'filtering-,tank provided with upright pipe F and branch pipes I, having strainer-cups, of valve-casing B, havin g water-supply opening d, port h, communicating with pipe F, port g,communicat ing with the filtering-tank, and port f, communicating with water-discharge port e, and of valve G, having cavity that will provide communication between either ports f g or f h, and having mounted upon its stem for oscillation the segment-gear m, engaging pinion n, that is operated by hand-wheel p, all substantially as set forth.

4. The combination of tank A, upright tubular shaft F,with radial pipes I, havingstrainers J, with arms N and vertical bars O, and with gear-wheel I), engaging pinion Q, operated by crank-wheel S, and of suitable valves IOO IIO

charge port e, and of osoillatingvalve G, having Cavity Qc, that will provide communication between either ports f g orf 7L, all substantiaily as set forth.

In testimony whereof we afiiX our signatures in presence of two witnesses.

OMAR H. JEWELL. IRA H. JEVELL.

Witnesses:

WILLIAM H. LoTz, OTTO LUEBKERT. 

